For anyone in the UK and Ireland, keep a look out for the little magazine/catalog that they have in Claire's. On the inside back cover, there's a voucher for £5/€5 off when you spend £20/€20 in store, you can also get the discount online by entering the code MAY5 at checkout. It's valid until the 31st of May, and the terms and conditions don't say anything about not being able to use it on the Prism collection, as far as I can tell the only exclusions are that you can't use it on sale items or with any other discount, and if using it online, you have to spend £20/€20 before any postage or shipping costs are added on.

right now I have it narrowed down to sunglasses, a charm bracelet, a pair of earrings, and maybe a necklace... but I also know Claire's has another set of those front and back tiger earrings that aren't technically in the Katy collection but they're a lot cheaper so I'm debating on getting those instead of the official ones